Head Light Auxiliary Light Adaptor KC HilitesHalo Light (if equipped with factory Mopar LED headlight, and the BCU has been programmed with this feature.) High Beams Low Beams 2018+ Jeep JL and JT Engineered for 2018+ Jeep JL and JT models, our Headlight Auxiliary Light Adaptor functions as a trigger relay to add auxiliary lighting to your three headlight modes. Now you can add aftermarket LED lights to turn on with your Low Beam Lights, High Beam, and Halo (if equipped with Mopar LED